一种全反射透镜组膜片以及背光模组
By combining the total reflection lens group film and the light-diffusing film, the problem of excessive size and weight of the backlight module is solved, and the brightness uniformity and assembly convenience are improved, meeting the high brightness requirements of head-up displays.
CN116643406BActive Publication Date: 2026-07-17BRIGHTEK (SHENZHEN) OPTOELECTRONIC CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BRIGHTEK (SHENZHEN) OPTOELECTRONIC CO LTD
- Filing Date
- 2023-05-11
- Publication Date
- 2026-07-17
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Figure CN116643406B_ABST
Abstract
本申请提供了一种全反射透镜组膜片以及背光模组，背光模组包括沿着光线传播方向依次设置的发光板、全反射透镜组膜片和均光膜片。全反射透镜组膜片包括片层区和多个全反射透镜单体；片层区的出光面为平面；多个全反射透镜单体设于片层区的相对出光面的侧面上，全反射透镜单体的端部中间处形成有凹槽，凹槽具有开口及面对开口的槽底曲面，全反射透镜单体具有周围曲面，周围曲面连接端部的端面及片层区的侧面。本申请中，只需使用全反射透镜组膜片和均光膜片两个光学元件，能减少背光模组整体的体积和重量，同时也提高背光模组组装的便利性；全反射透镜组膜片搭配具有长条形结构的均光膜片使用，能达到所需视角的亮度与9点均匀度80％以上的需求。
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